The Allegheny and Monongahela Rivers meet at Pittsburgh to form the Ohio River. The Allegheny, flowing south through forests and small towns, runs at an average flow of 340 cfs (cubic feet per second) and has a low silt load, 250 mg/L. The Monongahela, on the other hand, flows north at a flow of 460 cfs through old steel towns and poor farm country, carrying a silt load of 1500 mg/L. Assuming complete mixing and steady-state conditions (a) What is the flow rate in the Ohio River? (b) What is the silt concentration in the Ohio River?

Q: Two rivers meet at a confluence. River A is has a flow of 20m /s, a DO level of 12mg/l and a…

A: Given Data: River A QA=20m3/sDOA=12mg/lB0D=1mg/lRiver BQB=30m3/sDOB=4mg/lBOD= 34mg/lsat. DO level =…

Q: A horizontal, frictionless channel of circular cross-section and diameter equal to 5 feet flows at a…

A: Diameter = 5 ftDepth =  3ftVelocity = 2 ft/sFind:Maximum upward step height (max ) that this flow…

Q: A catchment consists of an asphalt pavement that drains into a rectangular concrete  channel. The…

A: Given data:- The given asphalt has an average slope is, 0.6% The catchment boundary to the drain is,…

Q: At a time of 6 pm and 9 pm, the inflow rates into a river are 25 m/s and 36 m3/s respectively. The…

A:

Q: CHANGE OF STORAGE VOLUME PART A At a particular time, the storage in a river reach is 84000 m. At…

A: Initial storage in river =84000m3Initial inflow, I1=3.1m3sInitial outflow, O1=3.7m3sFinal inflow,…

Q: 1. The Cannonsville Reservoir in Delaware County, NY is the northern-most reservoir in the NYC…

A: for water delaware aqueductdiameter of the water delaware aqueduct  Dw=11.4 ft=3.4747 mArea…

Q: A stormwater outfall discharges runoff into a pristine river with negligible dissolved solids such…

A: Given : The concentration of suspended solids, X = 100 mg/L Settling velocity, Vs = 2 m/day Flow…

Q: A stream with a flow of 1.7 m°/s and BOD 3.4 mg/l is saturated with DO (9.27 mg/l at 20°C). It…

A:

Q: lar channel one metr . The 300 bed slope al

A: Given data-  Discharge (Q) =  1 m³/s  Width of rectangular channel (B) = 1m  Depth of rectangular…

Q: What is the critical depth in a rectangular channel with 2.3 m width and 0.91 m2/s discharge per…

A: What is the critical depth in a rectangular channel and calculate minimum specific energy?

Q: The peak flow of an inflow hydrograph to a reservoir is Qp. It begins to flow into a large reservoir…

A:

Q: Floodwater with an average depth of 1 in. over a 96-acre parking lot drains into a small river…

A: Given data:

Q: A flow of 8.5 m3 /sec occurs in a long rectangular channel 3 m wide, laid on a slope of 0.0016, and…

A: Water in rivers flows downhill. It comes from uphill (upstream) and flows downhill (downstream). It…

Q: (a) Setup the continuity equation at the junction. (b) What is the total head loss, in meters (give…

A:

Q: Develop the following triangular inflow hydrograph through a linear reservoir: Peak inflow R = 4737…

A: To find outflow

Q: A storm with a uniform depth of 1 in. falls on a 25-acre watershed. Determine the total volume of…

A:

Q: catchment's outlet has an annual discharge of 0.80 m^3/a. It's size is 250 km^2. The annual…

A:

Q: 6.26 A truck crashed 500 m away from farmland, and it has contaminated an uncon- fined aquifer. A…

A: Darcy's Law. Darcy's Law is a fundamental equation that relates the discharge of groundwater to the…

Q: 3- Most hydraulic structure designs depends on: a- the firm flows in the river b-the maximum flows…

A:

Q: The community of San Antonio is located in the Caranavi Province, Bolivia. According to the 2005…

A: Introduction- Community of San Antonio -With 1,434,625 residents in 2020, it will be the…

Q: A stream with a flow of 1.7 m3/s and BOD 3.4 mg/l is saturated with DO (9.27 mg/l at 20oC). It…

A:

Q: A field channel has cultivable commanded area of 2000 hectares. The intensities of irrigation for…

A: A field channel-Cultivable command area-CCA=2000 ha,Intensity of irrigation for wheat…

Q: Water displaced by a floating wooden block of density 0.75, 5 m long, 2 m wide and 3 m high, is

A: The floating wooden Mock density = 0.75.    length =5m   width=2m   height=2m   water displaced…

Q: Rain falls on a 0.05 mi² urban catchment with an intensity of 0.85 in/hr. for a duration of 3 hrs.…

A: A = 0.05 mi2 i = 0.85 in/hr

Q: 10 m³/s. One hour unit hydrograph (unit depth = The drainage area of a watershed is 50 km². The…

A:

Q: a. The streamflow from a 500-hectare catchment due to a storm of constant intensity of 27mm/h for…

A:

Q: A hydrogen generation facility is proposed 5km west of an existing steel mill in downtown Hamilton.…

A: Apply concept of specific energy. Specific energy before hump and after hump will be equal

Q: An urban park has a drainage basin area of 398 ac. The 25-year rainfall event has a precipitation…

A: Given data: C=0.75 Average rainfall intensity, I=2.382 in. /h Drainage area, A=398 ac.

Q: 3. A small city discharges 3.5 m/s of sewage having a BOD of 30.0 mg/L and a dissolved oxygen…

A:

Q: A channel is made to flow adjacent to a river with a separation distance of 3000 ft completely…

A: To solve for the requested values, we can use the Dupuit-Thiem equation for calculating the flow…

Q: A rectangular flume of smooth wood (n =0.011) slopes 5 m. per 3 km. The width and depth of the first…

A: By manning's Equation  Q=1nAR23S12 n=0.011 S= 5m per km= 5/1000= 0.005  A1= 6*3= 18 m2 A2 = 2*7=14…

Q: 3. A 25-ft wide river running 22-feet deep is impinging on the upstream side of a bridge but not on…

A: Solution-The given values are as follows,The width of the river(w)=25ftThe depth of the river (d)=22…

Q: O -index is 0.5 cm/h and the base flow at the outlet is The drainage area of a watershed is 50 km2 D…

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Q: watershed is 725 mm. What is the mean annu volume of rain falling on the watershed in: m³ ft3…

A:

Q: In the Western Ghat area of Maharashtra, for a catchment area of 53.6 km², the maximum flood flow…

A: Given data, Catchment area=53.6 km2 to find the maximum flood flow for the catchment

Q: a drainage basin with an area of 5 km2 receives 25 mm of rainfall. The losses due to interception…

A: The given data is: Drainage Basin Area = 5 km2 Rainfall = 25 mm Losses due to interception and…

Q: If area of the catchment is 62,5 sq.mm and axial length of the catchment is 10 mm, the form factor…

A: Given that :- If the area of the catchment = 62.5 sq.mm axial length of the catchment = 10 mm To…

Q: A steady discharge of 1 cumec flows uniformly in a rectangular channel 1 m wide at a depth of 250…

A:

Q: A rain depth of 10 inches falls on a developed area of Charleston (CN = 90). Estimate the runoff.…

A:

Q: A concrete gravity dam is 100 ft long from upstream to downstream end. It is constructed on a…

A: Draw the following flow net for seepage occurring beneath the dam as follows: Part a.

Q: i If the approximate water level in the distributary canal near the field is 35.20 m, then the…

A:

Q: A reservoir covers an average surface area of 40 km< with an average depth of 25 m. The inflow to…

A:

Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.